<!DOCTYPE html>
<html lang="zh-CN">
<head>
    <meta charset="utf-8">
    <meta content="width=device-width, initial-scale=1" name="viewport">
    <title>玉灵 QQ:7031633 Email:webrx@126.com</title>
    <meta content="关键字" name="keywords">
    <meta content="简介" name="description">
    <style>

        *, html, body {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            overflow: auto;
        }

        html {
            font-size: 13.333333333vw;
        }

        .container {
            display: flex;
            flex-direction: column;
            font-size: .16rem;
            width: 100vw;
            height: 100vh;
        }

        .container header, .container footer {
            height: .56rem;
            line-height: .56rem;
            text-align: center;
        }

        .container section {
            background-color: orange;
        }
    </style>
</head>

<body>
<div class="container">
    <header>header nav</header>
    <section style="flex: 1">2</section>
    <footer>bottom nav</footer>
</div>
</body>
</html>
